Colorado's Olympic gold-medal winning swimmer, Amy Van Dyken-Rouen, severed her spine in an ATV crash in Arizona, according to Swimming World Magazine. "For her to have really have fractured a T-11, it must have been a tremendous amount of force and energy," said Dr. Vikas V. Patel, a spine surgeon at University of Colorado Hospital. "It's a huge amount of force required to, basically, take one half of the spine and go one direction and the other half go the other direction. Everything from that injury below will lose function."